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Biomedical subjects

R A Kirschner

Publications and source records attributed to R A Kirschner.

8 recordsLinked to original sources
PubMed1998

Orbital floor implant migration across the ethmoidal sinuses and nasal septum.

PURPOSE: To report an unusual case of orbital floor implant migration across the ethmoidal sinuses and nasal septum. METHOD: Case report. A 61-year-old woman with a history of right orbital floor fracture repair 25 years earlier is described. RESULTS: The patient presented with sinus congestion and difficulty breathing through the right nostril. Computed tomographic scan disclosed medial migration of the right orbital floor implant across the ethmoidal sinuses and nasal septum. The patient underwent transorbital and transnasal endoscopic surgery with removal of the implant. CONCLUSIONS: When an alloplastic orbital floor implant is required, size and fixation of the implant are important. Late paranasal sinus or nasal airway problems may be sequelae, and the possibility of implant migration should be considered.

Ethmoid Sinus↗
PubMed1992

Epidemiology of infection by nontuberculous mycobacteria. Mycobacterium avium, Mycobacterium intracellulare, and Mycobacterium scrofulaceum in acid, brown-water swamps of the southeastern United States and their association with environmental variables.

Mycobacterium avium, Mycobacterium intracellulare, and Mycobacterium scrofulaceum (MAIS) organisms were isolated and identified from waters, soils, aerosols, and droplets ejected from water collected from four geographically separate aquatic environments (Okefenokee Swamp, GA; Dismal Swamp, VA; Claytor Lake, VA; and Cranberry Glades, WV) during several seasons. Recovery of MAIS was significantly higher from waters, soils, and aerosols collected from the two acid, brown-water swamps located in the southeastern coastal plain. High MAIS numbers correlated with warmer temperature, low pH, low dissolved oxygen, high soluble zinc, high humic acid, and high fulvic acid. This research, in relation to previous findings for the geographic distribution and physiologic ecology of MAIS, supports the conclusion that waters, soils, and aerosols of the acid, brown-water swamps of the southeastern United States coastal plain represent major environmental sources likely connected with the higher incidence of human infection in this region.

Georgia↗
PubMed1984

Introduction to laser surgery.

Since the first operational laser was produced in 1960, the types and applications of lasers in many fields of medicine have increased dramatically. Many surgical techniques, especially with the CO2, argon, and Nd:YAG lasers, are described and illustrated in the articles in this issue. Current studies involving dye lasers and hematoporphyrin derivative (HPD) are discussed and evaluated.

Bronchoscopy↗
PubMed1984

Cutaneous plastic surgery with the CO2 laser.

Utilization of the CO2 laser in cutaneous plastic surgery has steadily increased in recent years. The accessibility of the laser in the office setting has had a major impact, providing situations that have aided in the development of surgical proficiency, and its innate properties have made possible a scope of surgical office procedures not previously possible. The work described herein is considered by today's researchers as but the harbinger of advancements to come.

Biopsy↗